| 节镍型不锈钢的耐腐蚀性能比较 |
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| 引用本文： | 齐达,李晶,董力,余健.节镍型不锈钢的耐腐蚀性能比较[J].腐蚀与防护,2010(10). |
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| 作者姓名： | 齐达 李晶 董力 余健 |
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| 作者单位： | 北京科技大学冶金与生态工程学院;华南不锈钢技术创新有限公司; |
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| 摘 要： | 通过3.5%NaCl溶液中动电位极化曲线测定和中性盐雾试验,对200系列奥氏体不锈钢和400系列铁素体不锈钢两类节镍型不锈钢与304不锈钢的耐腐蚀性能进行了对比研究。结果显示,400系列铁素体不锈钢的耐点蚀性能优于200系列奥氏体不锈钢,两种节镍型不锈钢的耐点蚀性能均不如304不锈钢好;200系列奥氏体不锈钢的耐均匀腐蚀性能最差,443不锈钢耐均匀腐蚀性能与304不锈钢相当,439不锈钢比304不锈钢耐均匀腐蚀性能稍差。201、202、304、439和443不锈钢在3.5%NaCl溶液中的点蚀电位分别为(vs.SCE)-32 mV、-22 mV、312mV、165 mV和227 mV,腐蚀速率分别为0.0071 mm/a、0.0062 mm/a、0.0026 mm/a、0.0038 mm/a和0.0024mm/a。
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| 关 键 词： | 不锈钢 均匀腐蚀 点蚀 镍含量 |
Comparison of Corrosion Resistance of Nickel Saving Stainless Steels |
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| QI Da,LI Jing,DONG Li,YU Jian.Comparison of Corrosion Resistance of Nickel Saving Stainless Steels[J].Corrosion & Protection,2010(10). |
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| Authors: | QI Da LI Jing DONG Li YU Jian |
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| Affiliation: | QI Da1,LI Jing1,DONG Li2,YU Jian1(1.University of Science & Technology Beijing,Beijing 100083,China,2.South China Stainless Steel Technology Innovation Co.,Ltd.,Foshan 528041,China) |
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| Abstract: | The corrosion resistance of 200 series austenitic stainless steels,304 stainless steel and 400 series ferritic stainless steels was studied by means of potentiodynamic polarization curves in 3.5% NaCl solution and salt spray testing.Results showed that 400 series ferritic stainless steels were better than 200 series austenitic stainless steels,304 stainless steel was the best one for pitting corrosion resistance,200 series austenitic stainless steels were the worst and 443 stainless steel was close to 304 s... |
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| Keywords: | stainless steel uniform corrosion pitting corrosion nickel content |
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